package com.jingxi.common.pojo;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

import java.util.List;

public class JingXiResult {
    // 定义jackson对象
    private static final ObjectMapper MAPPER = new ObjectMapper();
    // 响应业务状态
    private Integer status;
    // 响应消息
    private String msg;
    // 响应中的数据
    private Object data;

    public static JingXiResult build(Integer status, String msg, Object data) {
        return new JingXiResult(status, msg, data);
    }

    public static JingXiResult ok(Object data) {
        return new JingXiResult(data);
    }

    public static JingXiResult ok() {
        return new JingXiResult(null);
    }

    public JingXiResult() {
    }

    public static JingXiResult build(Integer status, String msg) {
        return new JingXiResult(status, msg, null);
    }

    public JingXiResult(Integer status, String msg, Object data) {
        this.status = status;
        this.msg = msg;
        this.data = data;
    }

    public JingXiResult(Object data) {
        this.status = 200;
        this.msg = "OK";
        this.data = data;
    }

    public Integer getStatus() {
        return status;
    }

    public void setStatus(Integer status) {
        this.status = status;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public  Object getData() {
        return data;
    }

    public void setData(Object data) {
        this.data = data;
    }

    /*** 将json结果集转化为JingXiResult对象* * @paramjsonData json数据* @paramclazz JingXiResult中的object类型* @return*/
    public static JingXiResult formatToPojo(String jsonData, Class<?> clazz) {
        try {
            if (clazz == null) {
                return MAPPER.readValue(jsonData, JingXiResult.class);
            }
            JsonNode jsonNode = MAPPER.readTree(jsonData);
            JsonNode data = jsonNode.get("data");
            Object obj = null;
            if (clazz != null) {
                if (data.isObject()) {
                    obj = MAPPER.readValue(data.traverse(), clazz);
                }
                else if(data.isTextual()) {
                    obj = MAPPER.readValue(data.asText(), clazz);
                }
            } return build(jsonNode.get("status").intValue(), jsonNode.get("msg").asText(), obj);
        } catch (Exception e) {
            return null;
        }
    }

    /*** 没有object对象的转化* * @paramjson* @return*/
    public static JingXiResult format(String json) {
        try {
            return MAPPER.readValue(json, JingXiResult.class);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    /*** Object是集合转化* * @paramjsonData json数据* @paramclazz 集合中的类型* @return*/
    public static JingXiResult formatToList(String jsonData, Class<?> clazz) {
        try {
            JsonNode jsonNode = MAPPER.readTree(jsonData);
            JsonNode data = jsonNode.get("data");
            Object obj = null;
            if (data.isArray() && data.size() > 0) {
                obj = MAPPER.readValue(data.traverse(), MAPPER.getTypeFactory().constructCollectionType(List.class, clazz));
            }
            return build(jsonNode.get("status").intValue(), jsonNode.get("msg").asText(), obj);
        } catch (Exception e) {
            return null;
        }
    }
}